Latulip



UNITED STATES PATEN'i OFFICE..

FREDERICK LATULIP, OF SYRAOUSE, NE\V YORK, ASSIGNOR OF ONE-HALF TOGEORGE B. LEONARD, OAF SAME PLACE.

PU LLEY-COVERING.

SPECIFICATION forming part of Letters Patent No. 442,124, dated.December 9, 1890.

Application iled November 23, 1889. Serial No. 331,303x (No model.)

To @ZZ whom it may concern.-

Be it known that I, FREDERICK LATULIP, a citizen of the United States,residing at Syracuse, in the county of Onondaga and State of New York,have invented a new and useful Improvement in Pulleyoverings, of whichthe following is a specification.

This invention relates to pulley-coverings composed of rawhide. f

I-leretofore rawhide has been applied to the periphery of pulleys in theform of a flat band or strip with the ends of the band or stripoverlapping each other or abutting against each other, and this band wassecured by means of rivets which passed through the covering and thepulley-rim. This,however, is objectionable, as the shrinking of therawhide tends to tear the covering where it is secured to the pulley-rimby the rivets, and also tends to V4open the seam or joint where the endsof the band meet.

The object of my invention is to overcome these difficulties; and myinvention consists of a seamless tubular covering of rawhide which isattached to the periphery of the pulley, as hereinafter fully described,and pointed out in the claims.

In thc accompanying drawings, Figure l represents the rawhide disk as itis cut preparatory to being softened. Fig. 2 is a transverse section ofa pulley, showing the rawhide disk placed against the side of the pulleypreparatory to stretching the disk over the rim. Fig. 3 is a sideelevation, partly in section, of a pulley provided with my improvedcovering. Fig. 4: is a transverse section of the pulley, showing onemeans for securing the covering. Fig. 5 is a similar section showing a:modified means for securing the covering on the pulley-rim.

Like letters of reference refer to like parts in the several figures.

A represents the pulley, which can be of any suitable construction, andais the rim thereof, to the outer side of which the rawhide covering Bis attached. The latter is formed and applied in the following manner: Adisk of suitable diameter is cut from a piece of rawhide and providedwith acentral opening O, so that the rawhide disk has inner and outerannular edges c d, respectively. This disk is softened by immersing itin hot water or some suitable chemical solution which will render itpliable and capable of being distended or stretched. It is then placedagainst one side of the pulley and axially in line therewith, so thatthe annular outer edge of the disk extends beyond the rim a of thepulley, as represented in Fig. 2. The outer annular edge is thenstretched and drawn across the face of the pulley until a portion of itprojects beyond the opposite side of the pulley, as shown by dottedlines in Fig. 2. The iiat rawhide disk is in this manner converted intoa seamless tubular covering which has it-s edges arranged on oppositesides of the pulleyrim. These edges are bent inwardly and secured toeach other on the inner side of the pulleyuini by means of cords e,arranged in the form of lacing, whereby the edges of the tubularcovering are drawn tightly together and the covering is stretchedsmoothly over the peripheral face of the pulley, as shown in Fig. 4.rIhis soft rawhide covering shrinks and becomes exceedingly hard indrying on the pulley, which causes it to adhere with a firm grip uponthe pulley, and the anirular edges of the covering, which have been bentunder the pulley-rim when dry, cling to the same and assist in holdingthe covering securely in place on the rim.

If desired, the lacing-cords which connect the edges of the covering maybe removed at'ter the covering is` dry, as represented in Fig. 5, as thelatter is incapable ot becoming disengaged from the pulley.

A coating of glue may be applied, if desii-ed, to the periphery of thepulley to aid in retaining the covering thereon "when subjected to verysevere usage, and several coverings may be secured, one above the other,as shown in Fig. 5, the number heilig increased or reduced in accordancewith the nat-ure of the work demanded of the pulley.

This manner of applying a rawhide covering to pulleys avoids the use ofa seam or joint on the face of the pulley, which is apt to destroy theutility of the covering.

The method of lacing the annular ends of the covering on the inner sideof the rim permits the covering to shrink with perfect frccdom, andtherebyavoids the tearing resulting IOO lill

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lar Covering` of rawhide, having its edges bent r 5 over the edges ofLhe pulley-rim and laced together on the inner side of the rim,substantially as set forth.

In witness whereof I have hereunto set my hand and affixed my seal this19th day of zo November, 1889.

h`s FREDERIGK LA'rULIP. [1.. s]

mark

Witnesses:

THOMAS HOGAN, C. W. PHILLIPS.

